Improvement in life-preserving mattresses



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Letters Patent No. 113,652, dated April 11, 1871.

IMPROVEMENT IN LIFE-PRESERVINGv MATTRESSES.

, The Schedule referred to in these Letters Patent andimaking part of the same.

To all whom 'it may concern:

Be it known that I, JAMES DURELL GREENE, of the city, county, and State of New York, have invented an Improved Life-Preserving Mattress; and I do hereby declare that the following, taken in connection with the drawing which accompanies and forms part of this specification, is a description of my invention sufficient to enable those skilled in the art to practice it.

United States Letters Patent No. 93,819, were granted to me August 17, 1869, for au improved lif'epreserver mattress, made with buoyant sides, that serve toV float it under the weight of a person, and with provision for enabling .the person to be easily supported without danger of being. thrown from it into the sea. v

My present invention relates to anew construction of such a mattress.

In the patented mattress, in order to provide a central opening to receive the person, the two ends were made separable to a short-distance from each oth'er, the parts being united by the buoyant rails and Hexible bands, the bands vlimiting the extent of separation ofthe two parts ot themattress.

This yconstruction is in some respects objectionable, and in my present invention I make the buoyant part of the mattress as one piece, or with buoyant ends and sides, and in the center I place a removable quadrangular part, stuffed only with hair or other soft till- Iing, which, being slipped out from the main body of the mattress, leaves a buoyant life-preserver, having no Arelatively movable parts other than the iexible band or strap for aiding in the support of the person.

-It is in such a life-preserving mattress that my presentinvention consists; that is to say, in a' mattress, the opposite ends and sides of which are made buoyant, and between which is a soft iilled and removable center piece.

vThe drawing represents a mattress embodying the invention.

A shows a lrop view of it.

B, a sectional plan.

U, an end view, part ofthe tick being torn away to filling, g, and they are preferably separated from the end parts e e by wood partitions h. The end parts e e have center layers of cork t', with a layer of hairon each upperand lower side.

To giverigidity to the oat, each edge of the mattress may be made with a wood slat, k, of a width alittle less than the thickness of the mattress, and of a length a little less than the length oflthe mat` tress. Y i

l denotes the fiexible band, extending across the opening f, and serving to aid in the supportoi' a person floating upon the mattress.

This baud isl made s uicientlylong to enable the center piece c to be readily inserted.

1, A life-preserving mattress made with a rigid buoyant frame, having a stufing of cork, surfaced in whole or in part with hair, such frame surrounding a removable center piece stuffed .with hair, substantially as shown and described.

,2. A liie-preserving mattress having a rigid buoyant frame and a removable center piece, whenthe frame is provided with a flexible band extending across the central opening, and'serving.to support the person.

J. DURELL GREENE. Witnesses:

FRANCIS GoULD, M. W. FRoTHrNGHAM. 

